Overhead transmission lines 1

[GadreP]

Hi All,
I am working on overhead transmission lines & as I am new to this field I want your help.
I have 2 Steam generators & a 100KVA DG feeding to a 415V bus. There is no transformer at incoming line. The bus will be charged by 2 Steam generators & DG will work only in emergency condition.
Then there 8 O/G feeders going to 8 different panels. The distance between main 415V bus & these 8 panels is about 2 Km & power will be transmitted by overhead lines.
Can anybody pls help me out to find the voltage drop in transmission & what do I need to do to compensate this Voltage drop?
I guess the Vd will be 180V & is capacitor bank a good solution to this problem? If yes, what will be its size?
Pls explain with the formula..

 

[GadreP]

One method for OH single phase system is Sending end voltage= receiving end V + IZ. If the system is single phase two wire, we multiply this equation by 2. But what do we do for 3 phase 4 wire. Do we need to multiply by root 3? (1.732) or is it something else? Pls help me out to solve this..